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Report/presentation
Report/presentation

... that would have started in the sixteenth century and completed in the first half of the nineteenth century, with minimum temperature in the years 1650, 1770 and 1850, forcing communities to adopt adaptation strategies which are ...
Slide 1
Slide 1

... 2.8 ± 0.7 mm yr-1 deglaciation ...
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Climate change - WordPress.com

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WELCOME TO PHYSICS 1103
WELCOME TO PHYSICS 1103

... Homework #13 is due today. Note: Homework #14 due on Thursday or Friday includes using a web site to calculate your carbon footprint. You should complete this homework before coming to class. ...
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International committee on large dams

... Operating Constraints  Environment – instream flow requirements? ...
Climate change: The Need to Consider  g Human Forcings in Addition to  h
Climate change: The Need to Consider  g Human Forcings in Addition to  h

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International legal action on climate change: Critical roles for
International legal action on climate change: Critical roles for

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the Cancun Communiqué
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Ice Ages and Climate Change - Florida Atlantic University
Ice Ages and Climate Change - Florida Atlantic University

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A Realty Check on Global Warming

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Climate Modeling, Projections, Predictions and Downscaling
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Climate Change and Croatia
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Global warming investigation
Global warming investigation

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Nicholas Stern's CV
Nicholas Stern's CV

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Can solar variations explain variations in the Earth`s
Can solar variations explain variations in the Earth`s

... change because that might undermine some unwelcome hypothesis such as that recent climate variations are due to human emissions of greenhouse gases. This is one reason why the IPCC has had to devote a lot of effort to discussing solar variability. But then, the advocates of solar causation just migh ...
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Phaeton`s Reins: The Human Hand in Climate Change
Phaeton`s Reins: The Human Hand in Climate Change

... sample to this limiting amount is the familiar quantity called relative humidity. Calculations with a large variety of computer models and observations of the atmosphere all show that as climate changes, relative humidity remains approximately constant. This means that as atmospheric temperature inc ...
37Temperatures
37Temperatures

... emission, but not an equal amount at all wavelengths. What is the dominant type of light coming from the surface of the Sun? ...
Climate Injustice: Social Context
Climate Injustice: Social Context

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Supporting Decision-Making and National Communication with
Supporting Decision-Making and National Communication with

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PDF
PDF

Ice Ages and Climate Change
Ice Ages and Climate Change

... radiometrically datable ice deposited more than 420,000 years ago • Oxygen isotope studies give us an essentially continuous climate record for that period ...
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Attribution of recent climate change



Attribution of recent climate change is the effort to scientifically ascertain mechanisms responsible for recent changes observed in the Earth's climate, commonly known as 'global warming'. The effort has focused on changes observed during the period of instrumental temperature record, when records are most reliable; particularly in the last 50 years, when human activity has grown fastest and observations of the troposphere have become available. The dominant mechanisms (to which recent climate change has been attributed) are anthropogenic, i.e., the result of human activity. They are: increasing atmospheric concentrations of greenhouse gases global changes to land surface, such as deforestation increasing atmospheric concentrations of aerosols.There are also natural mechanisms for variation including climate oscillations, changes in solar activity, and volcanic activity.According to the Intergovernmental Panel on Climate Change (IPCC), it is ""extremely likely"" that human influence was the dominant cause of global warming between 1951 and 2010. The IPCC defines ""extremely likely"" as indicating a probability of 95 to 100%, based on an expert assessment of all the available evidence.Multiple lines of evidence support attribution of recent climate change to human activities: A basic physical understanding of the climate system: greenhouse gas concentrations have increased and their warming properties are well-established. Historical estimates of past climate changes suggest that the recent changes in global surface temperature are unusual. Computer-based climate models are unable to replicate the observed warming unless human greenhouse gas emissions are included. Natural forces alone (such as solar and volcanic activity) cannot explain the observed warming.The IPCC's attribution of recent global warming to human activities is a view shared by most scientists, and is also supported by 196 other scientific organizations worldwide (see also: scientific opinion on climate change).
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